Salpingoeca rosetta (ATCC® 50818)

Strain Designations: BSB-021  /  Depositor: TA Nerad  /  Biosafety Level: 1

Permits and Restrictions

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Deposited As Proterospongia sp.
Strain Designations BSB-021
Biosafety Level 1
Product Format frozen
Type Strain no
Comments
Previously described as a member of the genus Proterospongia. Renamed as Salpingoeca rosetta based on molecular phylogeny and character trait.
Medium Medium 1525: Seawater 802 medium
Growth Conditions
Temperature: 25.0°C
Growth condition: xenic, with mixed bacteria
Cryopreservation
Cryoprotective Solution

DMSO                                                                                    2.0 ml

Fresh growth medium w/o bacteria                                 8.0 ml

1.     Mix the components in the order listed. When the medium is added to the DMSO the solution will warm up due to chemical heat.

2.    Harvest cells from a culture that is at or near peak density by filtration and centrifugation at 800 x g for 5 min.

3.     Adjust the concentration of cells to at least 2 x 106/ml in fresh medium.

4.     Mix the cell preparation and the cryoprotective solution in equal portions.

5.     Dispense in 0.5 ml aliquots into 1.0 - 2.0 ml sterile plastic screw-capped cryules (special plastic vials for cryopreservation).

6.     Place vials in a controlled rate freezing unit. From room temperature cool at -1°C/min to -40°C. If freezing unit can compensate for the heat of fusion, maintain rate at -1 C/min through heat of fusion. At -40°C plunge ampules into liquid nitrogen. Alternatively, place the vials in a Nalgene 1°C freezing apparatus.  Place the apparatus at -80°C for 1.5 to 2 hours and then plunge ampules into liquid nitrogen.  (The cooling rate in this apparatus is approximately -1°C/min.)  

7.     Ampules are stored in either the vapor or liquid phase of a nitrogen refrigerator.

8.     To establish a culture from the frozen state place the vial in a 35°C water bath.  Immerse the vial to a level just above the surface of the frozen material. Do not agitate the vial.   Immediately after thawing, do not leave in water bath, aseptically remove the contents of the ampule and inoculate into a T-25 tissue culture flask containing 10 ml ATCC medium 1525 bacterized with Klebsiella pneumoniae subsp. pneumoniae (ATCC® 700831) or Enterobacter aerogenes (ATCC® 13048).

9.     Incubate at 25°C with the cap screwed on tightly.

10.   Once the culture is established, vigorously agitate the flask and aseptically transfer 0.5 ml to 10.0 ml of bacterized ATCC medium 1525.

Follow the protocol for maintenance of culture.

Name of Depositor TA Nerad
References

Carr M, et al. Molecular phylogeny of choanoflagellates, the sister group to Metazoa. Proc. Natl. Acad. Sci. USA. 105: 16641-16646, 2008. PubMed: 18922774

Dayel MJ, et al. Cell differentiation and morphogenesis in the colony-forming choanoflagellate Salpingoeca rosetta. Dev. Biol. 357: 73-82, 2011. PubMed: 21699890

Notice: Necessary PermitsPermits

These permits may be required for shipping this product:

  • Customers located in the state of Hawaii will need to contact the Hawaii Department of Agriculture to determine if an Import Permit is required. A copy of the permit or documentation that a permit is not required must be sent to ATCC in advance of shipment.
Basic Documentation